Wool-combing machine



p 1945. H. SARKISIAN WOOL COMBING MACHINE Filed Oct. 2a, 1944 Patented Sept. 4, 1945 UNITED STATES PATENT OFFICE WOOL-COMBING MACHINE Hachig Sarkisian, North Andover, Mass.

Application October 26, 1944, Serial No. 560,427

2 Claims.

The invention pertains to wool combing machines having annular spaced rows of teeth, or pins, in which the wool fibre is embedded and carried, and out of which it is lifted by plows in the operation of the machine. The Noble Comis an example of such a machine.

The invention essentially relates to the mounting of the plows by which the wool fibre is lifted out of the pins, for great difficulty has been encountered in the mounting of these plows in order that the plows will properly function for their intended purpose in the operation of the machine.

The plows are pivotally mounted upon a fixed shaft or spindle. The plows extend down between the rows of pins and lift the mass of fibre out of the pins as the plate or table carrying the ,pins is turned. Inasmuch as the rows of pins vary in the amount of their spacing the plows, accordingly, vary in width, the width of the plow depending upon the width of the space between the line of teeth into which the plow has entry. In common practice the width of the plow is about equal to one-half of the space between the lines of teeth into which it has entry. The plows also vary in size for the reason that the pins are arranged to travel in a circular path and it is necessary that the plows, mounted as they are upon a common support, shall meet and engage the fibre all along a common line radial to the axis around which the pins, or table carrying the pins, is rotated.

It is necessary that the plows be stably maintained so as to be held at all times out of contact with the pins between which they are extending.- At the same time the plows must be so loosely sustained that they will have freedom of ivotal movement on the spindle, on which they are mounted, for the nose of each one of the plows must beallowed to lie substantially fiush at all times with the pin carrying table in order that it may enter beneath the mass of wool fibre brought to bear against it and lift all of the fibre out of the pins. If any fibre is left between the pins such leavings of fibre tend to increase, or build; and soon the teeth will have to be cleaned, which necessitates stopping the machine, and is a very laborious and expensive operation. This leaving of some of the fibre between the pins will occur if the plow becomes tilted even slightly, or it may occur if the plow is maintained too tightly on its mounting, which tightness will cure the tilting but does not necessarily afford such flexibility of mounting as will enable the plow to properly engage the fibre and lift all the fibre out of the pins as the table is rotated.

The use of any small parts in the mounting should be avoided in so far as possible for such parts might accidentally become misplaced and left unobserved in the teeth by a careless workman during the mounting of the plows. This would result in breakage of the teeth or other parts of the machine working on the fibre when the machine was started.

The object of my invention is to provid a mounting for the plows which will obviate the difficulties referred to and enable the plows to properly engage the mass of fibre as the table is rotated and lift all the fibre out of the pins, so that the necessity of cleaning the pins will not be a matter of days but only of months.

The invention can best be seen and understood by reference to the drawing in which Fig. 1 is a section of a pin carrying table with plows mounted to extend between the several lines of pins.

Fig. 2 is a vertical section of certain of the parts shown in Fig. 1.

Fig, 3 is a plan of one of the plows; and.

Fig. 4 shows one of the plows in side elevation.

Referring to the drawing: I represents the annular pin carrying plate or table which is rotated in the operation of the machine. 2 represents annular spaced. rows of teeth affixed to the plate I. 3 represents the plows which extend between the rows of teeth, all of which is of well known construction.

The plows are mounted upon a spindle 4 fixed to and extending from any suitable support 5 attached to some stationary adjacent part of the machine (not shown).

Each of the plows is provided with a hub 6. Each of these hubs is fixedly secured to the plow, of which it forms a part, by extension through a hole 1 in the plow, and located therein with tight fit. The spindle extends through these respective hubs, each hub fitting on the spindle in the manner of a sleeve with such fit as will enable the hub, and plow with it, to turn freely on the spindle but with such tightness of fit and length of bearing as will prevent any tilting of the attached plow with relation to the spindle.

The hubs of the respective plows correspond relatively in length with the width of the spaces between the respective rows of teeth whereby the plows will be properly positioned within the spaces between the rows of teeth into which they are extending when the hubs of the plows are moved the spindle and against which the inner en of I the line of abutting hubs is brought into abutment. The element 8 is held fixedly'in place by a set screw 9 and the element may be one which may bear against the fixture supporting the spindle and thereby assist in the support of the spindle. At their opposite or outer ends the line of hubs is maintained by means of an adjustable ring ID on the spindle against which the outer end of the line of hubs, When in abutting relation with each other and with the element 8, is brought into abutment.- The ring In is held fixedly secured to the spindle in any adjusted position by means of a tightening screw It passed through the ring and bearing against the spindle. In practice the ring is brought to bear against the hubs for holding them in abutting relation to each other and to the element 8 with only such pressure as will obtain and maintain such abutment, but so as not to interfere with the proper and free turning of the hubs on the spindle, thus enabling a free pivotal mounting ofall the plows to be ob tained and maintained.- Thus the proper spacing of all the plows is obtained from a single source, namely, that of the. adjustable ring, and is maintained from the same source, for, after the hubs have been moved along the spindle into a proper determinate position, the abutting ring is then fixed to the spindle, thus holding the hubs in place.

There are few loose parts used in obtaining the mounting for the hubs which function in part as space members, as well as providing for pivotal turning, are fixed to, and accordingly form a part of the respective plows and cannot be misplaced or lost in the teeth inadvertently by a careless worker.

I claim:

1. In a comber having a rotary pin carrying table with plows extending, respectively, into the spaces between respective rows of pins, a mounting for the plows comprising in combination a stationary spindle, a set of plows with hubs borne by the plows through which the spindle extends and upon which spindle the hubs will turn freely but with suflicient tightness of bearing to prevent tilting of the plows, said hubs in length relatively corresponding with the spaces between the respective rows of teeth whereby the plows will be properly positioned within the spaces between the rows of teeth into which they are extending when the hubs of the plows are moved along said spindle and brought into abutment with each other and there maintained in a determinate p0- sition on said spindle, and means for maintaining the hubs on said spindle in the determinate position to which they have been moved for locating said plows as aforesaid.

2. comber having a rotary pin carrying table with plows extending, respectively, into the spaces between respective rows of pins, a mounting 'for the plows comprising in combination a stationary spindle, a set of plows with hubs borne by the plows through which the spindle extends and upon which spindle the hubs will turn freely but with sufiicient tightness of bearing to prevent tilting of the plows, said hubs in length relatively corresponding with the spaces between the respective rows of teeth whereby the plows will be properly positioned within the spaces between the rows of teeth into which they are extending when the hubs of the plows are moved along said spindle and brought into abutment with each other and there maintained in a determinate position on said spindle, and means for maintaining the hubs on said spindle in the determinate position to which they have been moved for locating'said plows as aforesaid, including an element fixed to the spindle against which the inner end of the abutting hubs has abutment and an adjustable member afiixed to said spindle against which the outer end of the abutting hubs has abutment.

HACHIG SARKISIAN. 

